In which voice classification does the first passagio range from Ab3 to C4?

The first passaggio range from Ab3 to C4 is characteristic of the bass voice classification. In vocal training and singing practice, the passaggio refers to the transitional area in a singer's range where they shift from one vocal register to another. For bass singers, this transition generally occurs lower in their range, reflecting their unique vocal qualities and the deeper tonal quality associated with that vocal group.

While other voice classifications have different passaggio ranges due to their unique vocal anatomical structures and styles, the bass voice specifically includes this range as part of its defining characteristics. Understanding this information is essential for singers to effectively navigate their ranges and develop proper techniques for singing across different registers.